dc.contributor | Universidade Federal do Maranhão (UFMA) | |
dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | Univ Fed Vales Jequitinhonha & Mucuri | |
dc.contributor | Universidade Estadual de Campinas (UNICAMP) | |
dc.contributor | Inst Nacl Ciência & Tecnol Bioanalit | |
dc.date.accessioned | 2014-05-20T15:31:00Z | |
dc.date.available | 2014-05-20T15:31:00Z | |
dc.date.created | 2014-05-20T15:31:00Z | |
dc.date.issued | 2009-01-01 | |
dc.identifier | Journal of The Brazilian Chemical Society. São Paulo: Soc Brasileira Quimica, v. 20, n. 6, p. 1180-1187, 2009. | |
dc.identifier | 0103-5053 | |
dc.identifier | http://hdl.handle.net/11449/40268 | |
dc.identifier | 10.1590/S0103-50532009000600025 | |
dc.identifier | S0103-50532009000600025 | |
dc.identifier | WOS:000268336800025 | |
dc.identifier | S0103-50532009000600025.pdf | |
dc.identifier | 2933194342093387 | |
dc.description.abstract | The construction of an amperometric sensor for phenolic compounds using a carbon paste electrode modified with manganese phthalocyanine and histidine is reported. Under optimized conditions, at 0 mV vs Ag/AgCl in 0.1 mol dm(-3) phosphate buffer solutions (pH 7.0) containing 250 mu mol dm(-3) H2O2, a linear response for catechol from 20 up to 130 mu mol dm(-3) was obtained with a sensitivity of 0.56 (+/- 0.02) mu A dm(3) mu mol(-1) cm(-2). The detection limit was 1.1 mu mol dm(-3) and the response time was 2 s. The sensor presented stable response during 40 successive determinations. The repeatability, evaluated in terms of relative standard deviation, was 3.6% for n = 5 and [catechol] = 10 mu mol dm(-3). The sensor responses for other phenolic compounds were also investigated in details. Finally, the applicability of the sensor was tested in a pharmaceutical containing dopamine and the results compared favorably with those obtained with the official method. | |
dc.language | eng | |
dc.publisher | Soc Brasileira Quimica | |
dc.relation | Journal of the Brazilian Chemical Society | |
dc.relation | 1.444 | |
dc.relation | 0,357 | |
dc.rights | Acesso aberto | |
dc.source | Web of Science | |
dc.subject | manganese phthalocyanine | |
dc.subject | phenolic compound | |
dc.subject | amperometric sensor | |
dc.title | Manganese Phthalocyanine as a Biomimetic Electrocatalyst for Phenols in the Development of an Amperometric Sensor | |
dc.type | Artículos de revistas | |